LeetCode_Reverse Integer

Reverse digits of an integer.

Example1: x = 123, return 321
Example2: x = -123, return -321

class Solution {
public:
    int reverse(int x) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        if(x == 0) return x;
        int flag = 1;
        
        if(x < 0)
        {
            x*= -1;
            flag = -1;
        }
        vector<int> result;
        while(x)
        {
          int temp = x %10;
          result.push_back(temp);
          x/=10;
        }
        int num = 0;
        for(int i = 0; i< result.size(); i++)
        {
                num +=result[i];
                num*=10;
        }
        
        return flag*num/10 ;
    }
};